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Finding the Fourth Proportional to 253,556.83, 349,908.44 and 138,842.70

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Solution

The fourth proportional to 253,556.83, 349,908.44 and 138,842.70 is: 191,602.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,556.83 : 349,908.44 = 138,842.70 : x
  2. Step 2: Convert to fraction form
    253,556.83/349,908.44 = 138,842.70/x
  3. Step 3: Cross multiply
    253,556.83x = 349,908.44 × 138,842.70
  4. Step 4: Simplify right side
    253,556.83x = 48,582,232,562.39
  5. Step 5: Solve for x
    x = 48,582,232,562.39/253,556.83
  6. Step 6: Final answer
    x = 191,602.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.